Coke-oven.



- PATENTEIJ MAY 31, 1904.

J. S. MAXWELL.

COKE OVEN.

APPLICATION FILED ram 11, 1904.

2 SHEETS-SHEET 1.

no MODEL.

WITNESSES:

' ATTORNEYS dd -O No.761,521: v I PATENTEDMAY31,19Q4..

J. s. MAXWELL.

00KB OVEN.

APPLIOATION TILED FEB. 17, 1904. N0 MODEL. ZSHEETS-SHEET 2.

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: UNITED STATES Patented May 31 1904.

PAT NT O FICE.

ooKEfovE'N.

SPECIFICATION forming part of Letters Patent No. 761,521, dated May 31, 1904.

' Application filed February 17,1904. swarm). 193,950. (No model.) i

To all whom. it may concern.

Be it known that} 'IJJOSEPH SPEAR MAX- WELL, a citizen of the United States, and a resident of Cumberland, in the county of Allegany and State of Maryland, have invented new and useful Improvements in Coke-Ovens, of which the following is a full, clear, and exact description. i

This invention relates to improvements in coke-ovens; and the object is to provide an I in which similar characters of reference indicate corresponding parts 1n. all the figures.

Figure 1 is an elevation, partly in section, of a series of coke-ovens embodying my invention. Fig. 2 is a plan thereof, partly in section; and Fig. 3 is an elevation, partly in section, showing the end oven and intermediate ovens.

Arranged at each end of a long series of ovens formed in a single structure 1 are two ovens 2 3. These ovens 2 3 are separated by a partition-wall 4 and comprise end walls 5,

the front wall 6, and the rear wall 7 These walls and partition form ovens rectangular in cross areathat is, the several walls arestraight vertically and lengthwise; but for the purpose of additional strength the front wall is inclined inward from the base to the roof. Each oven is provided with an arched roof 8,

provided at its center with a vent 9. It will be noted thatthe ovenis formed in a rectangular brick or plate, as I find such shape more convenient in brickwor ln; It will also be noted that the roofs 8 are arched or curved from the partition 4 to the end walls and that transversely the said roofs are on straight lines. By this construction the capacity of each oven is greatly increased over an oven having substantially round or curved walls and a cupola top and not occupying a greater ground space; The front wall of each oven isprovided with two openings 10, through which the coke may be drawn, and each opening is closed by a brick wall when the oven is in operation, as indicated at 11. Spaced from the outer sides of the end walls 5 are vertical beams 12,which are seated firmly. in the ground and as here shown consist of I-beams, although they may be otherwise shaped. Secured tothe outer sidesof the end walls and also secured to the beams 12 are transverse beams 18, and the upper ends of the beams 12 are connected by tie rods/14;, which are here shown as provided with turnbuckles 15 for the purpose of tightening the same. The inner end walls 5 of the pair of end ovens are connected by short beams 16 with an I-beam 17, attached to the adjacent end of the structure 1. By means ofthese several beams and the tie-rods it is obvious that the end walls 5 are firmly braced against downward pressure caused by the arched roofs, and it may be here observed that there may be practically little or no pressure exerted on'the front wall. As the structure 1 containing the long series of ovens is braced from the end ovens, tie-rods are not a level or flat top surface upon which track- I rails 19 are supported. These tracks 19 are secured to cross-ties 20, and the tracks or rails are arranged above the plane of the tierods 14, so that said tie-rods will not interfere with movements of the coal-carrying cars movable on the rails. The track is arranged at one side of the longitudinal center of the structurethat is,a't one side of the vents 9- so that coal may be discharged from the cars through said. vents into the ovens.

The most important improvement in my coke-oven construction, it will be understood, is the straight arch, as by such arch repairs on the arch are saved, as it is practically indestructible, whereas in the beehive oven the arch is constantly falling down, not, however, from Wear, but because there is nothing to restrain the globular arch on the side where the doors are formed. Further, in a square oven as many doors as are desirable can be built in the front wall, so as to facilitate the pair of the end ovens, a pair of transverse beams connecting the end walls to the vertical beams, tie-rods connecting opposite vertical beams, and beam connections between the inner end wall of a pair and the adjacent end wall of the series of ovens.

2. The combination with a long series of coke-ovens, of a pair of coke-ovens arranged at each end of said long series of ovens, the ovens of each pair having straight end walls and straight front and rear walls, arched roofs for the ovens, the curve of the arch being lengthwise of the ovens, brace-beams arranged vertically outside of the end walls of each pair of ovens, a pair of transverse beams connecting the end walls to the vertical beams, tie-rods connecting opposite vertical beams, beam connections between the inner end wall of the pair and the adjacent end walls of the long series of ovens, and tracks extended lengthwise over all St the ovens, said tracks being supported above the plane of the tierods over the end ovens, the tops of the arched roofs being provided with vents.

3. The combination with a long series of coke-ovens arranged in a single structure, of pairs of end ovens spaced from the structure, each oven being rectangular in cross-area and having an arched top provided with a central vent, brace-beams extended upward along the end walls of the pair of ovens, tie-rods connecting opposite beams above the ovens, braces extended across the spaces between adjacent walls and connecting said walls, a packing ol dirt or the like supported on the ovens, and car-tracks extended along over all of the ovens at one side of the vents.

4. The combination with aplurality of cokeovens arranged in a single structure, of a pair of ovens arranged at each end of the structure and spaced therefrom, brace-beams extended across the spaces and connecting adjacent end walls, each of the ovens having two dischargeopenings, closures for said openings, arched roofs for the ovens and having vents at the center, and car-tracks extended along over all of the ovens at one side of the vents.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH SPEAK MAXlVELL.

Witnesses:

SHERMAN L. ARNOLD, EARL GAUMER. 

